Nov 14, 2019  Only one thing: The newest version has a bug where if you distort the image in Preview (e.g. Rotating left/right) and it already has a ThumbsUp thumbnail, it won't generate a new one if you drag it onto the application. You then have to do the copy/paste thing I mentioned earlier for thumbnail changes to be seen. Otherwise, a good app. Add or change a video thumbnail. Sign in to YouTube Studio. From the left menu, select Videos. Select a video by clicking on its title or thumbnail. Choose an auto-generated thumbnail and select Save. Create a custom video thumbnail. To upload custom thumbnails, you must have a verified account. The app also provides you the facility to share the encoded file via Gmail, Dropbox, etc. Apart from rotating your videos, you can also mirror them or change their resolution. Developer: Android Pixels. Rotate Video Tool. Rotate Video tool is a very simple android app that allows its users to rotate the videos from various angles.

How to take a screenshot on your Mac

1. To take a screenshot, press and hold these three keys together: Shift, Command, and 3.
2. If you see a thumbnail in the corner of your screen, click it to edit the screenshot. Or wait for the screenshot to save to your desktop.
   

How to capture a portion of the screen

1. Press and hold these three keys together: Shift, Command, and 4.
2. Drag the crosshair to select the area of the screen to capture. To move the selection, press and hold Space bar while dragging. To cancel taking the screenshot, press the Esc (Escape) key.
   
3. To take the screenshot, release your mouse or trackpad button.
4. If you see a thumbnail in the corner of your screen, click it to edit the screenshot. Or wait for the screenshot to save to your desktop.

How to capture a window or menu

1. Open the window or menu that you want to capture.
2. Press and hold these keys together: Shift, Command, 4, and Space bar. The pointer changes to a camera icon . To cancel taking the screenshot, press the Esc (Escape) key.
   
3. Click the window or menu to capture it. To exclude the window's shadow from the screenshot, press and hold the Option key while you click.
4. If you see a thumbnail in the corner of your screen, click it to edit the screenshot. Or wait for the screenshot to save to your desktop.

Where to find screenshots

By default, screenshots save to your desktop with the name ”Screen Shot [date] at [time].png.”

In macOS Mojave or later, you can change the default location of saved screenshots from the Options menu in the Screenshot app. You can also drag the thumbnail to a folder or document.

Learn more

How To Change Thumbnail On Mac

• In macOS Mojave or later, you can also set a timer and choose where screenshots are saved with the Screenshot app. To open the app, press and hold these three keys together: Shift, Command, and 5. Learn more about the Screenshot app.
• Some apps, such as the Apple TV app, might not let you take screenshots of their windows.
• To copy a screenshot to the Clipboard, press and hold the Control key while you take the screenshot. You can then paste the screenshot somewhere else. Or use Universal Clipboard to paste it on another Apple device.